McCall, who fell short this past month to Demetrious Johnson, will meet promotional newcomer John Moraga (10-1 MMA, 0-0 UFC) in a flyweight bout.

UFC on FOX 4’s main card airs live on FOX following preliminary-card fights on FUEL TV and Facebook. McCall vs. Moraga is part of the preliminary card, though it’s unknown whether the bout will be seen on FUEL TV or Facebook.

McCall headlined UFC on FX 3 opposite Johnson and was unanimously outpointed after three rounds. The fight, which served as the opening round of a four-man flyweight tourney, was a rematch of a meeting at UFC on FX 2 in which the scorecards were incorrectly tabulated and announced as a win for Johnson (instead of the actual draw).

A former Tachi Palace Fights flyweight champion, McCall had won four straight before his recent loss.

Moraga makes his debut on the strength of a four-fight win streak. The Arizona-based fighter recently won the Rage in the Cage bantamweight title and drops to 125 pounds for his octagon debut. He trains out of Arizona Combat Sports and MMA Lab.